/Engine/Source/Runtime/Engine/Public/MaterialShared.h
Gathers a list of shader types sorted by vertex factory types that should be cached for this material. Avoids doing expensive material and shader compilation to acquire this information.
void GetShaderTypes ( EShaderPlatform Platform, const [FPlatformTypeLayoutParameters](API\Runtime\Core\Serialization\FPlatformTypeLayoutParameters) & LayoutParams, [TArray](API\Runtime\Core\Containers\TArray)< [FDebugShaderTypeInfo](API\Runtime\Engine\FDebugShaderTypeInfo) > & OutShaderInfo ) const